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一种新型永磁同步电机高阶滑模控制算法

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针对永磁同步电机控制系统易因外部扰动等不确定性影响而导致控制性能下降的问题,提出了一种基于改进自适应非奇异终端滑模控制器和滑模扰动观测器补偿技术的复合控制算法.选择新型自适应指数趋近律设计非奇异终端滑模转速环控制器,新型趋近律可以在保证减少抖振的同时保证控制系统能够快速收敛,可动态适应被控系统的变化;利用扩展滑模扰动观测器实时估计系统中不确定性参数,并对控制器进行前馈补偿,且通过Lyapunov函数证明了其稳定性.仿真和试验结果表明,与PI控制、传统滑模控制方法相比,所提方法有效改善了抖振问题,提高了控制系统对电机的控制精度,提升了系统的鲁棒性和抗干扰性能.
A New High Order Sliding Mode Control Algorithm for Permanent Magnet Synchronous Motor
Aiming at the problem that the control system of permanent magnet synchronous motor(PMSM)was prone to decline in control performance due to uncertainties such as external disturbances,a composite control algorithm based on improved adaptive nonsingular terminal sliding mode controller and sliding mode disturbance observer compensation technology was proposed.A new adaptive exponential approach law was selected to design a non-singular terminal sliding mode speed loop controller.The new approach law can reduce chattering while ensuring fast convergence of the control system and dynamically adapting to changes in the controlled system;using an extended sliding mode disturbance,the real time estimation of uncertain parameters in the system observer and the feedforward compensation of the controller were performed,and its stability was demonstrated through Lyapunov functions.Simulation and test results show that compared with PI control and traditional sliding mode control,the proposed method can effectively improve the chattering problem,update the control accuracy of the control system to the motor,and raise the robustness and anti-interference performance of the system.

permanent magnet synchronous motornew adaptive exponential approach lawnon-singular terminal sliding mode controlextended sliding mode disturbance observerfeedforward compensationrobustness

于惠钧、蒋新春、黄刚、刘捃锓、郭益武、王志刚

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湖南工业大学电气与信息工程学院,湖南株洲 412007

湖南工业大学轨道交通学院,湖南株洲 412007

中山火炬职业技术学院,广东中山 528437

永磁同步电机 新型自适应指数趋近律 非奇异终端滑模控制 扩展滑模扰动观测器 前馈补偿 鲁棒性

国家自然科学基金面上项目湖南省自然科学基金湖南省教育厅科研项目湖南省教育厅科研项目

621731372021JJ5005220A16221A0354

2024

10.3969/j.issn.1000-3886.2024.02.001

电气自动化
上海电气自动化设计研究所有限公司 上海市自动化学会

电气自动化

CSTPCD
影响因子：0.377
ISSN：1000-3886
年,卷(期)：2024.46(2)
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